April 14, 2009 - Emerson Process Management introduces the Fisher POSI-SEAL A81 rotary valve. Tight shutoff and the long seal life capability of the A81 make it ideal for on/off applications. Complete shutoff is made possible by the pressure-assisting action of the valve seal ring. The opening and closing path of the eccentric valve disk minimizes contact with the seal ring, thereby reducing seal wear.
Interchangeable sealing technology allows the A81 valve body to accept both soft and metal seals.The POSI-SEAL valve is highly suited to automated on-off, quarter-turn performance and is typically used with the FieldQ rack-and-pinion actuator. The valve is available to ship in two weeks to meet day-to-day and emergency needs. The new rotary valve can be used in most process on/off applications; it installs easily in either a horizontal or vertical orientation with no detriment to performance or cycle life.
About Emerson Process Management
Emerson Process Management, an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the chemical, oil and gas, refining, pulp and paper, power, water and wastewater, metals and mining, food and beverage, pharmaceutical and other industries. Fisher products play a key role in Emerson’s combining of superior products and technology with industry-specific engineering, consulting, project management and maintenance services. Emerson brands include PlantWeb, Fisher, Micro Motion, Rosemount, Daniel, DeltaV, Ovation, and AMS Suite.
About Emerson
Emerson (NYSE: EMR), based in St. Louis, Missouri (USA), is a global leader in bringing technology and engineering together to create innovative solutions for customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2008 were $24.8 billion.
